Master's MateSafety Initiative Network

The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.

Tug

MIKASA

MMSI 431018725 · Call sign JD5060

Not yet on Master's Mate

Type

Tug

Flag

JPN

Length

34 m

Beam

10 m

Draft

3.5 m

Call sign

JD5060

First reported

Jun 2026

Last reported

Jun 2026

AIS reports

MIKASA, a working tug wearing Japanese colours, measures 34 metres on deck. She's built with a 10-metre beam and a 3.5-metre draft. She broadcasts as MMSI 431018725, call sign JD5060. MIKASA can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.

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Built for boats that work — like MIKASA.

Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.

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Last known position · Jun 2, 2026

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Position

35.9334° N, 140.6941° E

Working the Sea of Japan? You're never out there alone.

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Joining the Safety Initiative Network doesn't just put MIKASA on the map. It hands you the full bridge:

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Anchor Watch

GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.

Worldwide Charts

Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim MIKASA and switch it all on

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About MIKASA

What kind of vessel is MIKASA?

MIKASA is a Tug flagged to Japan.

Where was MIKASA last seen?

MIKASA was last reported in the Sea of Japan in Jun 2026 on public AIS.

What is MIKASA's MMSI?

MIKASA's MMSI is 431018725. Call sign JD5060.

How big is MIKASA?

MIKASA is about 34 m long, 10 m on the beam, drawing 3.5 m.

Is MIKASA on the Master's Mate Safety Initiative Network?

Not yet. If MIKASA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).